CN202381083U - Pressure testing device of internal blowout preventing tool - Google Patents
Pressure testing device of internal blowout preventing tool Download PDFInfo
- Publication number
- CN202381083U CN202381083U CN2011204959758U CN201120495975U CN202381083U CN 202381083 U CN202381083 U CN 202381083U CN 2011204959758 U CN2011204959758 U CN 2011204959758U CN 201120495975 U CN201120495975 U CN 201120495975U CN 202381083 U CN202381083 U CN 202381083U
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- CN
- China
- Prior art keywords
- pressure testing
- low head
- testing device
- blowout prevention
- jacking cylinder
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- Expired - Lifetime
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Abstract
The utility model provides a pressure testing device of internal blowout preventing tools, aiming at solving the problem of pressure testing and detection of internal blowout preventing tools. The pressure testing device of internal blowout preventing tools comprises an engine base (8), a top lid (2) and a vertical column (3) arranged between the engine base (8) and the top lid (2), wherein a jacking oil cylinder (7) is arranged in the engine base; a testing piece clamping device (4) is sleeved on the vertical column movably; a lower end socket (5) which props against a testing piece is installed on the testing piece clamping device (4); the testing piece is arranged between the top lid (2) and the lower end socket (5); and the jacking oil cylinder (7) is located corresponding to the lower end socket (5). The pressure testing device clamps safely and reliably and operates conveniently; the pressure test of internal blowout preventing tools can be carried out by only one person; and in comparison with sealing pressure test by buckling thread manually, the pressure testing device adopted by the utility model has the advantages that the working quantity is reduced, the efficiency is improved, and the batch pressure test detection of internal blowout preventing tools is facilitated.
Description
Technical field
The utility model belongs to interior blowout prevention tool detection technical field, and a kind of interior blowout prevention instrument pressure testing device that interior blowout prevention instrument pressure testing detects problem that is intended to solve is provided.
Background technology
Interior blowout prevention instrument comprises kelly cock, drilling tool back-pressure valve etc., is the critical component in the well control equipment, and its airtight quality directly influences effectively closing well of secondary well control.The blowout prevention instrument must carry out pressure testing in relevant well control regulation and well control inspection, all requiring before outbound, and provides the pressure testing examining report, with the sealing reliability of blowout prevention instrument in guaranteeing.
The drilling tool well control company use of being correlated with is at present carried out pressure testing from the internal blowout prevention instrument of processing of pressure testing plug and is detected, and linking closely through manual work is connected the pressure testing plug on the interior blowout prevention instrument.This mode inefficiency, operation inconvenience, and Yi Fashengci leaks during pressure testing, has certain security risk, improper in the production demand that detects in batch of blowout prevention instrument.
The utility model content
The utility model provides a kind of clamping safety, reliable, easy to operate interior blowout prevention instrument pressure testing device.The utility model adopts hydraulic way to substitute manual type, has improved operating efficiency, and be convenient to operation, and can guarantee the pressure testing sealing reliability, but the interior blowout prevention instrument of clamping different model, kind.
For realizing that above-mentioned purpose the utility model adopts following technical scheme:
Blowout prevention instrument pressure testing device in a kind of; It is characterized in that: comprise support (8), top cover (2), be arranged on column (3) between the two; Jacking cylinder (7) is set in the support, and pivot bush unit test block clamping device (4) on the column, test block add holds the last low head (5) that holds out against test block of installing of device (4); Test block is positioned between top cover (2) and the low head (5), and jacking cylinder (7) is corresponding with low head (5) position.
Carriage (9) has been rigidly connected under the said support (8).
Said support (8) is provided with the cavity that jacking cylinder (7) is installed.
Said column (3) is arranged on support (8) through being rigidly connected cavity radially two ends and with the cavity axially parallel.
Said adding, hold device (4) and be actively socketed on arbitrary column (3).
Said low head (5) comprises, low head seat, low head body, and 6 M8 bolts of said low head body and function are connected on the low head seat, and seal with O type rubber seal.
Said low head seat is provided with the hydraulic pressure joint that is used to connect power conduit.
Be provided with in the seal groove of said low head (5) and be used for the V-shaped seal ring that seals between low head and the test block.
Jacking cylinder (7) is provided with the oil pressure control system of its up-down of control; Oil hydraulic system comprises pressure meter (12), one way valve (11), hydraulic control one-way valve (13), 3-position 4-way transposition valve (14), petroleum pipeline; One way valve (11) one ends connect jacking cylinder B end through petroleum pipeline, and the other end connects the A1 end of 3-position 4-way transposition valve (14) through petroleum pipeline; Pressure meter (12) one ends connect jacking cylinder B end through petroleum pipeline, and the other end is held through the B1 that petroleum pipeline connects hydraulic control one-way valve (13), and the C3 end of hydraulic control one-way valve (13) connects the C1 end of 3-position 4-way transposition valve (14) through petroleum pipeline; The C end of jacking cylinder connects the C1 end of 3-position 4-way transposition valve (14) through petroleum pipeline; The P1 end of 3-position 4-way transposition valve (14) is main oil-in, and 01 end is main oil return opening.
The utlity model has following beneficial effect:
One, this pressure testing machine,, makes the seal head packing produce certain distortion, thereby realizes high pressure sealing in the time of balance hydraulic pressure with jacking cylinder jacking seal head through oil pressure.Clamping safety, reliable, easy to operate only needs a people just can carry out interior blowout prevention instrument pressure testing.Compare tipping row sealing pressure testing on the screw thread in manual work, reduced workload, improved efficient, the batch pressure testing of blowout prevention instrument detects in being convenient to realize.
Two, rotatable work retainer is rotatable 90 °, also can be up and down with the jacking fluid cylinder, realized clamping and positioning function preferably.
Three, the O-ring seals contact area is little, and it is unreliable to seal, and damages easily.Therefore replace O-ring seals with V-shaped seal ring, contact area is bigger, and sealing is reliable, is not easy to damage, and can use repeatedly more than 10 times.
Description of drawings
Fig. 1 is the structure chart of the utility model;
Fig. 2 is the cylinder structure figure of the utility model;
Fig. 3 is the low head seat front view structure chart of the utility model;
Fig. 4 is the low head seat vertical view structure chart of the utility model;
Fig. 5 is the low head body front view of the utility model;
Fig. 6 is the low head body vertical view of the utility model;
Fig. 7 is the oil hydraulic system schematic diagram;
1 is that coupling nut, 2 is that top cover, 3 is that column, 4 is that clamping device, 5 is that low head, 6 is that hydraulic pressure joint, 7 is that jacking cylinder, 8 is that support, 9 is that carriage, 11 is that one way valve, 12 is that pressure meter, 13 is that hydraulic control one-way valve, 14 is a three position four-way directional control valve among the figure.
The specific embodiment
Blowout prevention instrument pressure testing device in a kind of; Comprise support (8), top cover (2), be arranged on column (3) between the two; Jacking cylinder (7) is set in the support, and pivot bush unit test block clamping device (4) on the column, test block add holds the last low head (5) that holds out against test block of installing of device (4); Test block is positioned between top cover (2) and the low head (5), and jacking cylinder (7) is corresponding with low head (5) position.
Carriage (9) has been rigidly connected under the said support (8).
Said support (8) is provided with the cavity that jacking cylinder (7) is installed.
Said column (3) is arranged on support (8) through being rigidly connected cavity radially two ends and with the cavity axially parallel.
Said adding, hold device (4) and be actively socketed on arbitrary column (3).
Said low head (5) comprises, low head seat, low head body, and 6 M8 bolts of said low head body and function are connected on the low head seat, and seal with O type rubber seal.
Said low head seat is provided with the hydraulic pressure joint that is used to connect power conduit.
Be provided with in the seal groove of said low head (5) and be used for the V-shaped seal ring that seals between low head and the test block.
Jacking cylinder (7) is provided with the oil pressure control system of its up-down of control; Oil hydraulic system comprises pressure meter (12), one way valve (11), hydraulic control one-way valve (13), 3-position 4-way transposition valve (14), petroleum pipeline; One way valve (11) one ends connect jacking cylinder B end through petroleum pipeline, and the other end connects the A1 end of 3-position 4-way transposition valve (14) through petroleum pipeline; Pressure meter (12) one ends connect jacking cylinder B end through petroleum pipeline, and the other end is held through the B1 that petroleum pipeline connects hydraulic control one-way valve (13), and the C3 end of hydraulic control one-way valve (13) connects the C1 end of 3-position 4-way transposition valve (14) through petroleum pipeline; The C end of jacking cylinder connects the C1 end of 3-position 4-way transposition valve (14) through petroleum pipeline; The P1 end of 3-position 4-way transposition valve (14) is main oil-in, and 01 end is main oil return opening.
The selection of jacking cylinder and oil pressure pump
According to pressure balance: P oil >=P water (thrust >=hydraulic action of piston oil-cylinder is in the thrust of downhole tool end socket inner chamber)
Piston oil-cylinder
Inside diameter D=400mm stroke L=400mm
Compression area S oil=π/4 D2=3.14/4 * 4002=125600mm2
Downhole tool such as plug valve divide seven kinds of specifications:
NC31(210/211) 2?7/8REG(230/231) 5?1/2?FH
NC38(310/311) 6?5/8REG(630/631)
NC50(410/411) 7?5/8REG(730/731)
Various end socket bearing areas do
| Specification | 7 5/8REG | 6 5/8REG | 2 7/8REG | 5 1/2 FH | NC50 | NC38 | NC31 |
| Diameter | Φ 190 | Φ 165 | Φ 95 | Φ 155 | Φ 145 | Φ 110 | Φ 85 |
| Area S water | 28338.5 | 21371.6 | 7084.6 | 18859.6 | 16504.6 | 9498.5 | 5671.6 |
The oil pressure of piston oil-cylinder
S oil=P water S water
P oil=S water/S oil * P water unit: MPa
Therefore, the pressure parameter of hydraulic system is designed to:
Maximum pressure: 31MPa
Flow: 23L/min
Volume of fuel tank: 600L
The control of jacking cylinder oil pressure
As shown in Figure 7, during the oil cylinder jacking, three position four-way directional control valve is in position, a left side, and hydraulic oil is held from main oil inlet P 1 → three position four-way directional control valve 14 → one way valve 11 → jacking cylinder B, and oil return is from the C1 end → main oil return opening 01 of decline oil cylinder C → three position four-way directional control valve 14.This moment, hydraulic control one-way valve 13 was inoperative.
When oil cylinder descended, hydraulic oil was from main oil inlet P 1 → three position four-way directional control valve 14 → decline oil cylinder C, and oil return is from jacking cylinder B → hydraulic control one-way valve oil return 13.At this moment, hydraulic control one-way valve control oil channel C3 is because the fluid-control one-way valve core is opened in the effect of hydraulic oil, makes the hydraulic oil of jacking cylinder can be from the hydraulic control one-way valve oil return.
The pressure testing operating procedure
(1) with artificial with the workpiece locating rack by turning 90 degrees counterclockwise, at this moment locating rack just forwards to outside the pressure testing machine base.Earlier the low head with institute's pressure testing specification is contained in the annulus of locating rack lower end, packs the special-purpose sealing ring of pressure testing in the low head seal groove into.
(2) power conduit is connect with low head hydraulic pressure joint mutually.
(3) pressure testing workpiece male end is hung in the low head through hole on the locating rack down.
(4) artificial with locating rack by clockwise rotating 90 degree, at this moment locating rack and workpiece have all forwarded in the jacking cylinder in the heart.
(5) with the operation of the hand-operated valve on support jacking cylinder, the oil cylinder rising heads on workpiece slowly rises, and up to top cover, at this moment pointer reaches the oil pump output pressure on the pressure meter, and the expression workpiece clamps, but water pressure testing.
(6) water pressure testing can be with high-pressure hydraulic pump to the workpiece internal pump water, and pump is undertaken by well control workshop water pressure testing process to rated pressure.
(7) tried hydraulic pressure after, with hand-operated valve jacking cylinder is dropped to jacking cylinder and breaks away from workpiece.
(8) manual work rotates counterclockwise 90 degree with locating rack again.
(9) institute's pressure testing workpiece is hung out from locating rack.
The pressure testing effect
With this pressure testing machine respectively to 51/2 " down cock (520 * 521,35 MPa), 5 " back pressure valve (410 * 411,70MPa) make the rated operating pressure leakage test, voltage stabilizing 5 minutes does not have and leaks, pressure drop is respectively 0.01 MPa and 0.03MPa, pressure testing is qualified.
The pressure testing mode
Pressure testing is taked to connect power conduit from low head hydraulic pressure joint, injects hydraulic pressure with high-pressure hydraulic pump and carries out pressure testing, can external pressure sensor force of impression data and curves, observe pressure drop.
Claims (9)
1. blowout prevention instrument pressure testing device in a kind; It is characterized in that: comprise support (8), top cover (2), be arranged on column (3) between the two; Jacking cylinder (7) is set in the support, and pivot bush unit test block clamping device (4) on the column, test block add holds the last low head (5) that holds out against test block of installing of device (4); Test block is positioned between top cover (2) and the low head (5), and jacking cylinder (7) is corresponding with low head (5) position.
2. blowout prevention instrument pressure testing device in according to claim 1, it is characterized in that: carriage (9) has been rigidly connected under the said support (8).
3. blowout prevention instrument pressure testing device in according to claim 1 is characterized in that: said support (8) is provided with the cavity that jacking cylinder (7) is installed.
4. blowout prevention instrument pressure testing device in according to claim 1 is characterized in that: said column (3) is arranged on support (8) through being rigidly connected cavity radially two ends and with the cavity axially parallel.
5. blowout prevention instrument pressure testing device in according to claim 1 is characterized in that: said adding, hold device (4) and be actively socketed on arbitrary column (3).
6. blowout prevention instrument pressure testing device in according to claim 1, it is characterized in that: said low head (5) comprises, low head seat, low head body, 6 M8 bolts of said low head body and function are connected on the low head seat, and seal with O type rubber seal.
7. blowout prevention instrument pressure testing device in according to claim 6, it is characterized in that: said low head seat is provided with the hydraulic pressure joint that is used to connect power conduit.
8. blowout prevention instrument pressure testing device in according to claim 1 is characterized in that: be provided with in the seal groove of said low head (5) and be used for the V-shaped seal ring that seals between low head and the test block.
9. blowout prevention instrument pressure testing device in according to claim 1; It is characterized in that: jacking cylinder (7) is provided with the oil pressure control system of its up-down of control; Oil hydraulic system comprises pressure meter (12), one way valve (11), hydraulic control one-way valve (13), 3-position 4-way transposition valve (14), petroleum pipeline; One way valve (11) one ends connect jacking cylinder B end through petroleum pipeline, and the other end connects the A1 end of 3-position 4-way transposition valve (14) through petroleum pipeline; Pressure meter (12) one ends connect jacking cylinder B end through petroleum pipeline, and the other end is held through the B1 that petroleum pipeline connects hydraulic control one-way valve (13), and the C3 end of hydraulic control one-way valve (13) connects the C1 end of 3-position 4-way transposition valve (14) through petroleum pipeline; The C end of jacking cylinder connects the C1 end of 3-position 4-way transposition valve (14) through petroleum pipeline; The P1 end of 3-position 4-way transposition valve (14) is main oil-in, and 01 end is main oil return opening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204959758U CN202381083U (en) | 2011-12-03 | 2011-12-03 | Pressure testing device of internal blowout preventing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204959758U CN202381083U (en) | 2011-12-03 | 2011-12-03 | Pressure testing device of internal blowout preventing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202381083U true CN202381083U (en) | 2012-08-15 |
Family
ID=46629596
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204959758U Expired - Lifetime CN202381083U (en) | 2011-12-03 | 2011-12-03 | Pressure testing device of internal blowout preventing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202381083U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556987A (en) * | 2013-11-18 | 2014-02-05 | 中国石油化工股份有限公司 | Hydraulic test system of well control device for oil and gas fields |
| CN108168753A (en) * | 2017-11-21 | 2018-06-15 | 中石化石油工程技术服务有限公司 | Interior blowout control tool pressure testing device |
| CN109459228A (en) * | 2018-12-27 | 2019-03-12 | 成都海猛石油机械有限公司 | A kind of interior jet-preventing tool pressure testing table |
| CN109459228B (en) * | 2018-12-27 | 2024-04-23 | 贵州高峰石油机械股份有限公司 | Internal blowout prevention tool pressure test table |
-
2011
- 2011-12-03 CN CN2011204959758U patent/CN202381083U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556987A (en) * | 2013-11-18 | 2014-02-05 | 中国石油化工股份有限公司 | Hydraulic test system of well control device for oil and gas fields |
| CN108168753A (en) * | 2017-11-21 | 2018-06-15 | 中石化石油工程技术服务有限公司 | Interior blowout control tool pressure testing device |
| CN108168753B (en) * | 2017-11-21 | 2020-03-03 | 中石化石油工程技术服务有限公司 | Pressure testing device for internal blowout prevention tool |
| CN109459228A (en) * | 2018-12-27 | 2019-03-12 | 成都海猛石油机械有限公司 | A kind of interior jet-preventing tool pressure testing table |
| CN109459228B (en) * | 2018-12-27 | 2024-04-23 | 贵州高峰石油机械股份有限公司 | Internal blowout prevention tool pressure test table |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120815 |
|
| CX01 | Expiry of patent term |